Finding the Fourth Proportional to 2,690,131,718.56, 3,712,371,463.84 and 1,500,699,739.94
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Solution
The fourth proportional to 2,690,131,718.56, 3,712,371,463.84 and 1,500,699,739.94 is: 2,070,959,890.89
Step by Step Solution
- Step 1: Write the proportion equation
2,690,131,718.56 : 3,712,371,463.84 = 1,500,699,739.94 : x - Step 2: Convert to fraction form
2,690,131,718.56/3,712,371,463.84 = 1,500,699,739.94/x - Step 3: Cross multiply
2,690,131,718.56x = 3,712,371,463.84 × 1,500,699,739.94 - Step 4: Simplify right side
2,690,131,718.56x = 5,571,154,890,341,613,568 - Step 5: Solve for x
x = 5,571,154,890,341,613,568/2,690,131,718.56 - Step 6: Final answer
x = 2,070,959,890.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.